On Mon, Mar 7, 2011 at 2:45 AM, Tom Hendrick <sdtom...@yahoo.com> wrote:
> Thanks Tom, > > I'm a beginner still with linux/GNURadio so I couldn't really find any > information that makes sense as to how gr-atsc handles the fifo piping. > > I had seen an example online of someone that had done a transmission using > the USRP and piping. They had piped the output of gstreamer using mkfifo > like I had tried but I can't get any output on the USRP when I read from the > file created by mkfifo. > > http://wiki.oz9aec.net/index.php/Simple_DVB_with_Gstreamer_and_GNU_Radio > > -Tom > Hi tom, Maybe the program you use for writing the video to the file uses some operations that only work on regular files? You may compare it to gnuradio/core/src/lib/io/gr_file_sink.cc which works well with named pipes. Also note that applications that use named pipes are frozen until both ends of the pipe are open. So if both applications are running then the "pipe connection" should be OK and the problem could be data type mismatch or something like that. Alex
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